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What can the world do to stop deforestation? (5 bull-point)
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- What does noise pollution mean?What can people and nations do to fix global warming? Cite 5 specific contributions you can personally do at a national or international level.is self-propelled, it forms the nucleus of the tractor. This seúrce of power will be discussed in greater detail in subsequent chapters. Questions 1. What are the major sources of power available on a farm? 2. What is the significance of human power? Can it be eliminated completely by the use of other farm power sources? 3. List the advantages and limitations of using animal power. What is the pulling capacity of: a) a donkey; b) an ox? 4. List the factors that influence the output available from an animal. Discuss each factor. 5. Which machines can be operated by: a) wind power; b) water power? 6. What are the advantages of solar power? Give examples of the use of solar power on the farm. 7. List the farm operations (stationary and mobile) for which electricity can be used. Illustrate with examples.